Yes, but it is not the fleshly nation.
Jesus tells us they were abandoned.
(Matthew 23:33-38) 33 “Serpents, offspring of vipers, how will you flee from the judgment of Ge·henʹna? 34 For this reason, I am sending to you prophets and wise men and public instructors. Some of them you will kill and execute on stakes, and some of them you will scourge in your synagogues and persecute from city to city, 35 so that there may come upon you all the righteous blood spilled on earth, from the blood of righteous Abel to the blood of Zech·a·riʹah son of Bar·a·chiʹah, whom you murdered between the sanctuary and the altar. 36 Truly I say to you, all these things will come upon this generation. 37 “Jerusalem, Jerusalem, the killer of the prophets and stoner of those sent to her—how often I wanted to gather your children together the way a hen gathers her chicks under her wings! But you did not want it. 38 Look! Your house is abandoned to you.
So if it isn't the fleshly nation, who is the Jew today?
(Romans 2:28, 29) 28 For he is not a Jew who is one on the outside, nor is circumcision something on the outside, on the flesh. 29 But he is a Jew who is one on the inside, and his circumcision is that of the heart by spirit and not by a written code. That person’s praise comes from God, not from people.
Who is God's nation today?
(Galatians 4:26) 26 But the Jerusalem above is free, and she is our mother.
(Galatians 6:15, 16) 15 For neither is circumcision anything nor is uncircumcision, but a new creation is. 16 As for all those who walk orderly by this rule of conduct, peace and mercy be upon them, yes, upon the Israel of God.
The Israel of God is made up of Christians who are circumcised in the heart, who walk by God's commandments as given to Christians.